Worked on the kubernetes/kubernetes repository to deliver a core backend feature focused on improving error handling in the client-go watchErrorStream. The approach involved wrapping underlying errors rather than converting them to strings, enabling standard error inspection through Go’s errors.Is, errors.As, and errors.Unwrap functions. This change enhanced observability and reliability of watch streams in production environments by providing clearer diagnostics and more actionable error information. Unit tests were updated to validate the new error handling behavior, increasing test coverage and confidence in the implementation. The work demonstrated skills in backend development, error handling, and unit testing using Go.